Waltham school security worker charged with trying to build bomb

Jesse Holland arrested by Leominster Police

Leominster Police arrested a high school security guard early Wednesday morning for allegedly trying to build a bomb with materials stolen from Waltham Public Schools, according to Mayor Jeannette McCarthy.

A maid who cleaned the home of former New England Patriots player Aaron Hernandez has testified at his murder trial that she saw him "messing with" the security camera in his basement the day after the killing.